/*
 * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package org.graalvm.visualvm.lib.profiler.heapwalk.memorylint;

import org.openide.util.Lookup;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

/**
 *
 * @author nenik
 */
final class RuleRegistry {
    //~ Constructors -------------------------------------------------------------------------------------------------------------

    private RuleRegistry() {
    }

    //~ Methods ------------------------------------------------------------------------------------------------------------------

    public static Collection<Rule> getRegisteredRules() {
        List<Rule> al = instantiateRules();
        Collections.sort(al,
                         new Comparator<Rule>() {
                public int compare(Rule o1, Rule o2) {
                    return o1.getDisplayName().compareTo(o2.getDisplayName());
                }
            });

        return al;
    }

    private static List<Rule> instantiateRules() {
        return new ArrayList<Rule>(Lookup.getDefault().lookupAll(Rule.class));
    }
}
